40 citations · 304 across the 20 of their papers we have counts for
20 papers
Global N-body Simulation of Gap Edge Structures Created by Perturbations from a Small Satellite Embedded in Saturn's Rings II: The Effect of Satellite's Orbital Eccentricity and Inclination
Naoya Torii, Shigeru Ida, Eiichiro Kokubo +1
Pan and Daphnis are embedded in Saturn's rings and opening a gap with satellite wakes at the gap edges. Furthermore, in the case of Daphnis, pronounced vertical wall structures cas…
Global N-body Simulation of Gap Edge Structures Created by Perturbations from a Small Satellite Embedded in Saturn's Rings
Naoya Torii, Shigeru Ida, Eiichiro Kokubo +1
Observations by the Voyager and Cassini spacecrafts have revealed various striking features of the gap structure in Saturn's ring, such as the density waves, sharp edge, and vertic…
Coherent Stellar Motion in Galactic Spiral Arms by Swing Amplification
Shugo Michikoshi, Eiichiro Kokubo
We perform local -body simulations of disk galaxies and investigate the evolution of spiral arms. We calculate the time autocorrelation of the surface density of spiral arms and…
Global N-Body Simulation of Galactic Spiral Arms
Shugo Michikoshi, Eiichiro Kokubo
The origin of galactic spiral arms is one of fundamental problems in astrophysics. Based on the local analysis Toomre (1981) proposed the swing amplification mechanism in which the…
Gravitational instability of a dust layer composed of porous silicate dust aggregates in a protoplanetary disk
Misako Tatsuuma, Shugo Michikoshi, Eiichiro Kokubo
Planetesimal formation is one of the most important unsolved problems in planet formation theory. In particular, rocky planetesimal formation is difficult because silicate dust gra…
Dynamics of Porous Dust Aggregates and Gravitational Instability of Their Disk
Shugo Michikoshi, Eiichiro Kokubo
We consider the dynamics of porous icy dust aggregates in a turbulent gas disk and investigate the stability of the disk. We evaluate the random velocity of porous dust aggregates…